Application range of NM400 wear plate, :1) NM400 wear-resistant plate is used for thermal power equipment: coal mill lining, coal hopper, coal distribution pipe, coal distribution grid, coal unloading equipment lining.2) NM400 wear-resistant plate is used for shot blasting machinery and equipment: shot blasting machine liner.2) NM400 wear-resistant plate is dedicated for excavator claws, and various wear-resistant tools.
, Q345 and Q345B are steel numbers. The differences are as follows:1. Q345 is general and does not indicate the quality level; Q345B is clear and the quality level is B.2. Q345 does not require to inspect the impact performance; Q345B requires that the impact performance at room temperature is qualified (impact at 20 ℃).3. Q345 does not indicate carbon content of steel; Q345B carbon content is 0.20%.Q345 refers to carbon structural steel with yield point (σ s) of 345MPa. The following letters indicate the quality level, including A, B, C, D and E.
After the order is finished, our after-sales service center will send an email to make a feedback about our steel products' quality. We have phone service every three months to remind our customers of the possible problems and collect advices or suggestions in quality and service. Upon the collection of advices or suggestions, our after-sales service will quickly make technical solutions to wipe out the customer problem.
On Nov. 1st, 2019, BBN SA573 Grade 58 structural carbon steel steel organized Delegation to visit Zhengzhou Children Welfare Institute, and to give sponsorship as well as concerns to the Children. The handicapped children is always a pain topic. With the development of the society, they also gets increasing concerns and help from all walks of life. Thankfully, our Government also gives high concern to the handicapped children and has built Children Welfare Institutes all over the country to guarantee their lives.